containment valve
... top kill 灭顶法(通过泵将大批高密度液体注进输油管,克制原油上涌,再用水泥封逝世漏油点。) containment valve 防漏阀 leak-proof cover 防漏罩 ...
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本实用新型提供了一种压盖式阀门的阀杆防漏装置。
The utility model provides the a valve rod leakage-proof device of a gland type valve, comprising clamp apparatus and special bolts;
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